The electromagnetic force of the machine was numerically investigated via virtual work method and Maxwell stress tensor method.
计算中选用虚位移法和麦克斯韦应力张量法两种方法。
Maxwell stress tensor method and virtual work method have been used widely in electromagnetic force FEM analysis.
电磁力的计算方法中 ,虚位移法精度较高 ,但公式的推导比较复杂 ;麦克斯韦应力法易于推导 ,应用简便 ,但对积分路径的选取较为敏感。
In the light of complexity in derivation of the mathematical model of bearingless switched reluctance motors (BSRM) based on the virtual work method, the paper builds a mathematical model considering the characteristic of magnetic saturation with Maxwell stress tensor method.
针对已有基于虚位移法的无轴承开关磁阻电机数学模型推导复杂的缺限,从麦克斯韦应力法角度出发,建立了考虑电机磁饱和特性的数学模型。
This article has expounded some traditional explanations of the false water level phenomena.
阐述了虚假水位的传统解释方法,并针对传统方法难以完整地解决的某些问题,提出了一种方法,即根据循环回路中贮质量的变化来解释虚假水位现象。
Calculated through C++ code, the dynamic characteristics of drum level caused by turbulence in boiler were emulated, and also the phenomenon of false water level was analyzed.
本文在综合分析了以往汽包蒸发区数学模型的基础上,以河北邢台兴泰发电厂的一台300MW锅炉为研究对象,针对锅炉蒸发区的特点,依据质量和能量平衡,建立了汽包水位非稳态数学模型;在此基础上,通过C++编程计算,对炉内各扰动下的水位动态特性进行了仿真实验,分析了虚假水位现象;与现场运行数据比较后,结果表明模型能够比较真实的反映现场运行情况,并提出了水位控制的方法,对汽包锅炉的安全运行和控制具有参考意义。
A severe phenomenon of false water level exists in boiler drum under varying operating conditions.
锅炉汽包在变工况运行时往往产生严重的"虚假水位"现象。
The relation of the stress computation between the conductor system and the dielectric medium system with virtual displacement method in electrostatic field is presented in this paper,the dielectric medium stress essence in the electrostatic field is explained.
用虚位移法计算静电力可分为两种情况:一种为导体的情况;另一种为为介质的情况。
The computation of the current loop stress in magnetostatic field is quite easy to understand with virtual displacement method because two formulas both are produced for current loop system.
用虚位移法计算静磁场中载流回路的受力是比较容易理解的,因为两个公式都是针对载流回路体系的情况给出的,本文给出了用虚位移法计算静磁场中磁介质受力与用虚位移法计算静磁场中载流回路受力的关系,从而说明了静磁场中磁介质受力的本质,阐明了静磁场中磁介质受力的计算可直接应用静磁场中载流回路受力公式的原因,给出了计算磁介质受力时可以运用计算载流回路受力公式的条件,并给出了具体的例子进行说明。
The electromagnetic torque and force were calculated with virtual displacement method.
用虚位移法计算了电磁转矩和电磁吸力,用摩擦定律计算了摩擦转矩,进而计算出输出转矩。
A comment on "actual displacement belongs to virtual displacement";
对“实位移是虚位移中的一个”传统提法的质疑
The electrostatic force and magnetostatic field force calculat edwith the method of virtual displacement;
静电场力磁场力的虚位移解法
In this paper,an effective solution to calculating the electrostatic and magnetostatic field force—solution of virtual displacement—is given on the grounds of theory and examples.
文章从理论和实例出发,给出一种计算电场力和磁场力的有效方法——虚位移解法。
virtual displacement [ work ]
【物】虚位移[功]
Let the junction of the three fracture lines have a virtual displacement.
令三条折断线的相交处有一虚位移。
On the Traditional Absence and Modern Position of China s Civil Law Culture;
浅论中国民法文化的传统虚位与现代定位
Phase discrimination CFAR technique
相位鉴别恒虚警技术
Optimization of the locations of the virtual sensors in the virtual sound barrier system
虚拟声屏障系统中虚拟传感器位置的优化研究
Glory, honour, wealth, and rank, such thing is nothing but shadow.
荣誉、财富、地位无非是虚幻的泡影。
What we like the most about the great man is his modesty.
对那位伟人,我们最喜欢他的谦虚。
First I must see this Feathers of the Sun and size up the situation.
我得先见见这位“太阳之羽”，探探虚实。
The girl was either affected or pretentious.
这位姑娘既不虚伪也不做作。
We felt the salesman's synthetic friendliness.
我们感觉到那位销售员的虚情假意。
The old lady was increasingly fragile after her operation.
那位老太太手术后身体越来越虚弱。
He is quite modest though he is a leading cadre .
虽然他是位领导干部，却相当谦虚。
On Legal Status and Protection of Network Virtual Property;
论网络虚拟财产的法律地位及其保护
The syntactic status of expletive there and some related theoretical issues;
虚词there的句法地位及相关理论问题
A Brief Analysis of Fictitious Accountancy of Construction Corporations in the Theme of Accounting;
在会计主体下虚拟建设单位会计浅析
On Lawyers Lack of Proceeding Identity in the Probing Stage;
侦查阶段律师诉讼地位虚化问题探析
Study on the like-biological mechanism and the ecological niche of virtual enterprises;
虚拟企业类生物机制及其生态位研究
On the Philosophical Meanings of "Virtual Technology"--Based on the Analysis of Karl.Poppers Theree Worlds Theory ;
“虚拟技术”"在“三个世界”中的位置